Japan · 
Who invested in Heartseed?
Heartseed's investors include Nissay Capital, SMBC Venture Capital, SBI Investment, UTokyo Innovation Platform and Keio Innovation Initiative, and 4 more on record.
2020202120222023
$26MSeries B$14MSeries D
Japan · Series D startup
Who invested in Heartseed
Funding summaryUpdated 26 Oct 2026
$40Mraised across 2 rounds since 2019, from 2 sources
$26MSeries B$14MSeries D
- Latest round
- Series D, $14MMay 2023
- Biggest round
- $26MSeries B · Nov 2019
- Investors
- 9
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $26M Nov 2019
- Biggest round
- $26M Series B · Nov 2019
- Between rounds
- 3.4 years from the last two
The rounds
- May 2023Series D$14M4 new1 returning
SMBC Venture Capital
SBI Investment- Nissay Capital
UTokyo Innovation Platform
Keio Innovation Initiative
Source recorded
- Nov 2019Series B$26M5 new
- Nissay Capital
Astellas Venture Management- Gene Techno Science
- JMDC
- SMBC Capital
Reported by FinSMEs
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Series B2019Series D2023Nissay CapitalSMBC Venture CapitalSBI InvestmentUTokyo Innovation PlatformKeio Innovation InitiativeAstellas Venture ManagementGene Techno ScienceJMDCSMBC Capital
SMBC Venture CapitalSBI InvestmentUTokyo Innovation PlatformKeio Innovation InitiativeAstellas Venture ManagementGene Techno ScienceJMDCSMBC CapitalEveryone who backed them
Nissay CapitalVC firm2rounds
Gene Techno ScienceGrowth equity1round
JMDCno record of our own yet1round
SMBC Capitalno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Heartseed as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Heartseed
How much has Heartseed raised?
Heartseed has raised $40M across 2 rounds since 2019.
When did Heartseed last raise?
Heartseed's most recent round was a Series D of $14M in May 2023.
What was Heartseed's biggest round?
Heartseed's largest round on record is $26M (Series B), in Nov 2019.
Who backed Heartseed first?
Heartseed's first round on record, in Nov 2019, was backed by Nissay Capital, Astellas Venture Management and Gene Techno Science and 2 others.
What stage is Heartseed at?
Heartseed's latest named round is a Series D, in May 2023.
Where is Heartseed based?
Heartseed is based in Japan.
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